Automatic stop-motion mechanism for power-looms.



No- 830,561. PATENTED SEPT. 11, 1906.

J. F. BLUMER.

AUTOMATIC STOP MOTION MECHANISM FOR POWER LOOMS.

APPLICATION FILED JAR. a. 1904.

3 SHEETS-SHEET 1. l

THE Remus PETERS cm. wasmuomn. up.

No. 830,561. PATENTED SEPT. 11, 1906.

' J J. 1'. BLUMBR.

AUTOMATIC STOP MOTION MECHANISM FOR POWER LOOMS.

APPLICATION FILED JAN. 3, 1904.

3 SHEETS-SHEET 2.

I Ian wimfi/ W 3? m -rns NORRIS I'EYER: m, mm". c.

No- 880,561. PATENTED SEPT. 11, 1906. J. F. BLUMER. AUTOMATIG'S TOP MOTION MECHANISM FOR POWER LOOMS.

APPLICATION FILED JAN.8,1904.

3 SHEETS-SHEET 3.

rut mulls rqrnu co, nus-mum", n. c.

JEAN FRITZ BLUMER, OF ENGI, SWITZERLAND.

AUTOMATIC STOP-MOTION MECHANISM FOR POWER-LOOMS.

Specification of Letters Patent.

Patented Sept. 11, 1906.

Application filed January 8, 1904. Serial No, 188,223,

To all whom, it may concern.-

Be it known that I, JEAN FRITZ BLUMER, a

' citizen of the Swiss Federancy, and a resident of Engi, Canton of Glarus, Switzerland, have invented a certain new and useful Improvement in Automatic Stop-Motion Mechanism for Power-Looms, of which the following is a specification.

This invention relates to improved automatic stop mechanism for power looms adapted when a thread of the warp breaks to act upon shipping mechanism or disconnecting-gear to automatically stop the loom.

The annexed drawings illustrate my invention diagrammatically.

Figure 1 is a longitudinal elevation of my device with an improved form ofdetectorplates arranged in separate rows, each plate being provided at its upper end with two warp-thread holes and at its lower end with an oblong slot. Fig. 2 is a side view of an improved clutch mechanism. Fig. 3 is a plan view of the parts shown in Fig. 1 omitting the detector-plates. Figs. 4 and 4 include different views of details of construction hereinafter described.

The warp-threads coming from the warpbeam pass, as usual, over a guide bar or rail 0, fixed in any desired manner on the loomframe, which bar serves as a support for the warp-threads. The said threads pass, according to the requirements of the web and as shown, through the lower eyes of detectorplates P P, which are formed with guideslots and are held in place by guide-bars d d, passing through said slots.

In order to guide and hold the detectorplates P P together, three bars e e e are provided, the middle one being considerably wider than the others. The two guide-bars (Z d and the bars 6 e are bolted at each end to supporting-braces t, which are adjustably fixed to the two sides of the loom-frame, as shown, by way of example, in Figs. 1 and 4, so as to permit them to be easily adjusted longitudinally or vertically. The said braces t are provided with slotted extensions t, adapted to be bolted to U-shaped slotted supports t secured to any stationary part of the loom-frame. The slots in the extension t and supports t are angularly disposed with respect to each other, as shown in Fig. 4, to afford adjustment of the braces tin the manner set forth. In order to prevent lateral movement of the ends of the rows of detectorplates P P on the guide-bars, I provide two stops K, which engage said guide-bars at points adjacent the end braces t, as shown in Figs. 4 and 4. Said stops K are recessed at 7c is to receive guiderails e, d, and d, as clearly shown in Figs. 4 and 4. Below this combination of bars and detector-plates or detectors P P, I mount a rotary feeler A, provided with a plurality of radiating wings, or, r

as in A, wherein a cylinder is provided with a plurality of longitudinally disposed grooves, or, as in A, where the cylinder is cut away to form a longitudinal shoulder. The feeler is driven from a suitable countershaft B, Fig. 3, by means of an intermediate chain driving device.

Upon the end of the shaft of the feeler A is fitted a clutch device D E, the part D being fixed upon the shaft, while the part E, provided with the chain-wheel C, is loosely mounted thereon. The part E is engaged with D by the weight of a lever G, the effect of which is to transmit rotary motion of the chain-wheel C to the feeler A. The lever G is connected to the disconnecting-lever h 'i, which acts upon the disconnecting-fork M and the shipper-handle R.

The guide-bars d and d are located so that when the warp-threads have been threaded singly, according to the requirements of the web, through the lower holes of the detectorplates P or P and the warp is ready said plates are supported by the threads themselves. When a thread breaks, the corresponding detector-plate P or P drops down and bears upon the corresponding guide-bar d or d. The descending plate arrests the feeler A, and the part E of the clutch device is disengaged from the part D, owing to the cam action of the clutch members. The lever G is consequently raised at its lower end, and likewise the lever h, causing the leverarm 1 to thrust the disconnecting-fork n,

against the shipper-handle R, and thus stop the loom.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination in a loom, of the detector-plates and the rigid frame composed of bars d, d, e, e, e and braces t, bodily removable from the machine with said plates, and a suitable rotary feeler, with the clutch on the flier-shaft.

2. The combination with the detectorplates, of a rotary feeler with which said plates directly engage when released, means for continuously rotating the shaft of said feeler, a clutch arranged on the shaft of said feeler and adapted to become disengaged when a detector-plate drops and checks the feeler, the shipper-handle R, and the intermediate levers G, h, i, operatively connected with said handle and clutch.

3. The combination with the detectorplates, of arotary feeler with which said plates directly engage when released, means for continuously rotating the shaft of said feeler, a clutch arranged on the shaft of said feeler and adapted to become disengaged when a detector-plate drops and checks the feeler, the shipper-handle R, the intermediate levers G, h, i, operatively connected with said handle and clutch and means for regulating the strokes of said levers.

4. The combination with a rotary feeler, detector-plates supported by the warp threads adapted to drop and directly engage the feeler, means for continuously rotating the shaft of said feeler, a clutch arranged on the shaft of said feeler, a bell-crank connected by one limb with one member of said clutch, a second bell-crank lever actuated by the remaining limb of said first-mentioned lever, and a disconnecting-fork actuated by said second bell-crank lever.

5. The combination With slotted detectorplates, of a rotaryfeeler adapted to be directly engaged by said plates, a guidingframe consisting of bars extending through and laterally adjacent the plates, and stops for said bars.

6. The combination with slotted detectorplates, of a rotary feeler adapted to be div rectly engaged by said plates, an adjustablymounted guiding-frame consisting of bars extending through and laterally adjacent the plates, and stops for said'bars.

7. The combination with slotted detectorplates, of a rotary feeler, and a stationary guide-frame consisting of bars guiding said plates on either side of said member.

In testimony whereof I have hereunto set my hand.

JEAN FRITZ BLUMER.

Witnesses: V

- T. U. BABLER,

HAEMMERLI AEBLE. 

